[INFO] fetching crate plotlib 0.5.1...
[INFO] testing plotlib-0.5.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate plotlib 0.5.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate plotlib 0.5.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plotlib 0.5.1
[INFO] finished tweaking crates.io crate plotlib 0.5.1
[INFO] tweaked toml for crates.io crate plotlib 0.5.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate plotlib 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f76067babd903ca9943c9bb63186c1a6ffb277b4b3c7ecd980a8201ba556a650
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f76067babd903ca9943c9bb63186c1a6ffb277b4b3c7ecd980a8201ba556a650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f76067babd903ca9943c9bb63186c1a6ffb277b4b3c7ecd980a8201ba556a650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f76067babd903ca9943c9bb63186c1a6ffb277b4b3c7ecd980a8201ba556a650", kill_on_drop: false }`
[INFO] [stdout] f76067babd903ca9943c9bb63186c1a6ffb277b4b3c7ecd980a8201ba556a650
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb5e13e1b6f11813412dcee33dcb4cfffe8f45a1c66b1bbe3b091adc697ad7db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cb5e13e1b6f11813412dcee33dcb4cfffe8f45a1c66b1bbe3b091adc697ad7db", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling svg v0.7.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.34
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling plotlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.56s
[INFO] running `Command { std: "docker" "inspect" "cb5e13e1b6f11813412dcee33dcb4cfffe8f45a1c66b1bbe3b091adc697ad7db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5e13e1b6f11813412dcee33dcb4cfffe8f45a1c66b1bbe3b091adc697ad7db", kill_on_drop: false }`
[INFO] [stdout] cb5e13e1b6f11813412dcee33dcb4cfffe8f45a1c66b1bbe3b091adc697ad7db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0913916778a5288a587ef924c6a5e338795123dbbb3d1272cd5dab92fc2b68c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a0913916778a5288a587ef924c6a5e338795123dbbb3d1272cd5dab92fc2b68c", kill_on_drop: false }`
[INFO] [stderr]    Compiling plotlib v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_style`
[INFO] [stdout]    --> src/repr/plot.rs:182:38
[INFO] [stdout]     |
[INFO] [stdout] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stdout]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.28s
[INFO] running `Command { std: "docker" "inspect" "a0913916778a5288a587ef924c6a5e338795123dbbb3d1272cd5dab92fc2b68c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0913916778a5288a587ef924c6a5e338795123dbbb3d1272cd5dab92fc2b68c", kill_on_drop: false }`
[INFO] [stdout] a0913916778a5288a587ef924c6a5e338795123dbbb3d1272cd5dab92fc2b68c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9a9caf3593f9c98a9479fd9a5471c1a898997aa6bc5fb420067a30a5495f2597
[INFO] running `Command { std: "docker" "start" "-a" "9a9caf3593f9c98a9479fd9a5471c1a898997aa6bc5fb420067a30a5495f2597", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `line_style`
[INFO] [stdout] running 22 tests
[INFO] [stderr]    --> src/repr/plot.rs:182:38
[INFO] [stderr]     |
[INFO] [stderr] 182 |         let face_lines = if let Some(line_style) = &self.line_style {
[INFO] [stderr]     |                                      ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_style`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `plotlib` (lib) generated 1 warning
[INFO] [stderr] warning: `plotlib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/plotlib-3418259553c7ac43)
[INFO] [stdout] test axis::tests::test_number_of_ticks ... ok
[INFO] [stdout] test axis::tests::test_calculate_tick_step_for_range ... ok
[INFO] [stdout] test repr::histogram::tests::test_histogram_from_slice ... ok
[INFO] [stdout] test svg_render::tests::test_value_to_face_offset ... ok
[INFO] [stdout] test text_render::tests::test_render_face_bars ... ok
[INFO] [stdout] test text_render::tests::test_render_face_points ... ok
[INFO] [stdout] test text_render::tests::test_render_x_axis_strings ... ok
[INFO] [stdout] test text_render::tests::test_overlay ... ok
[INFO] [stdout] test text_render::tests::test_render_y_axis_strings ... ok
[INFO] [stdout] test text_render::tests::test_x_axis_label ... ok
[INFO] [stdout] test text_render::tests::test_bins_for_cells ... ok
[INFO] [stdout] test text_render::tests::test_value_to_axis_cell_offset ... ok
[INFO] [stdout] test text_render::tests::test_empty_face ... ok
[INFO] [stdout] test utils::tests::test_mean ... ok
[INFO] [stdout] test utils::tests::test_pairwise ... ok
[INFO] [stdout] test utils::tests::test_median ... ok
[INFO] [stdout] test utils::tests::test_pad_range_to_zero ... ok
[INFO] [stdout] test utils::tests::test_quartiles ... ok
[INFO] [stdout] test axis::tests::test_tick_step_generator ... ok
[INFO] [stdout] test repr::histogram::tests::test_histogram_define_bin_bounds ... ok
[INFO] [stdout] test axis::tests::test_calculate_ticks ... ok
[INFO] [stdout] test style::tests::test_linestyle_plain_overlay ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_no_data.rs (/opt/rustwide/target/debug/deps/test_no_data-3298f8213de86c3e)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests plotlib
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_data_with_one_length ... ok
[INFO] [stdout] test test_data_with_one_length_and_autoscaling_axes_limits ... ok
[INFO] [stdout] test test_data_with_no_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/repr/plot.rs - repr::plot (line 3) ... ok
[INFO] [stdout] test src/repr/barchart.rs - repr::barchart (line 5) ... ok
[INFO] [stdout] test src/repr/histogram.rs - repr::histogram (line 5) ... ok
[INFO] [stdout] test src/repr/boxplot.rs - repr::boxplot (line 5) ... ok
[INFO] [stdout] test src/grid.rs - grid (line 15) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9a9caf3593f9c98a9479fd9a5471c1a898997aa6bc5fb420067a30a5495f2597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a9caf3593f9c98a9479fd9a5471c1a898997aa6bc5fb420067a30a5495f2597", kill_on_drop: false }`
[INFO] [stdout] 9a9caf3593f9c98a9479fd9a5471c1a898997aa6bc5fb420067a30a5495f2597